I'm listening to the audio book with wife and daughters. We love it. We are about half way through, I think.
We'll make sure to see the movie. We really liked The Martian as well.
I'm a little disappointed they didn't cast Bobcat Goldthwait in the lead, but Ryan Gosling will be pretty good.
I listened to it on Audible too. AS I'm sure you know, the story is uniquely suited for audio.
Bobcat Goldthwait? Am I not remembering something from the book? I didn't even know he was still alive.

To be honest I just imagined Matt Damon again. Weir writes fun stories but to be honest his main characters seem to be one-notes. The main characters seemed to have the same personality even if they have different backgrounds. I don't mind. It makes for a fun story.
Gosling will be an adequate stand-in. I like most of his stuff. Well, maybe not The Notebook.

You know Rendezvous with Rama is in production. That was one of my top 3-4 favorite books.